Control device for use in shunt motor
    12.
    发明授权
    Control device for use in shunt motor 失效
    用于分流电机的控制装置

    公开(公告)号:US4037144A

    公开(公告)日:1977-07-19

    申请号:US562983

    申请日:1975-03-28

    摘要: A system is disclosed for controlling the speed and torque of an electric motor throughout its entire operating range from low speed operation to high speed operation, while minimizing the total loss of energy in the motor. The minimization of energy loss is facilitated by controlling the motor field current during the low running speed of the motor as well as during the high running speed.

    摘要翻译: 公开了一种用于在从低速操作到高速操作的整个操作范围内控制电动机的速度和扭矩的系统,同时最小化电动机中的总能量损失。 通过在电动机的低运行速度期间以及在高运行速度期间控制电机励磁电流来促进能量损失的最小化。

    Transistor and semiconductor device
    13.
    发明授权
    Transistor and semiconductor device 失效
    晶体管和半导体器件

    公开(公告)号:US5821588A

    公开(公告)日:1998-10-13

    申请号:US779031

    申请日:1997-01-06

    申请人: Tsutomu Ohmae

    发明人: Tsutomu Ohmae

    摘要: An object of the invention is to provide a transistor in which the channel length of the transistor is changed depending on voltages applied to plural gate electrodes which are dividedly formed, and plural kinds of operation states are attained. In a MOS transistor 31, a second gate electrode 36 is formed via an insulating film 35 on a first gate electrode 34 formed in a region E2. The channel length formed in a semiconductor substrate 32 is determined in accordance with the combination of voltages applied to the first and second gate electrodes 34 and 36. The MOS transistor 31 can operate in either of states of different threshold voltages.

    摘要翻译: 本发明的目的是提供一种晶体管,其中晶体管的沟道长度根据施加到分割形成的多个栅电极的电压而改变,并且获得多种操作状态。 在MOS晶体管31中,在形成于区域E2的第一栅电极34上经由绝缘膜35形成第二栅电极36。 根据施加到第一和第二栅电极34和36的电压的组合来确定形成在半导体衬底32中的沟道长度.MOS晶体管31可以以不同阈值电压的状态工作。

    Automatic change-gear control device for use in electromobile
    15.
    发明授权
    Automatic change-gear control device for use in electromobile 失效
    用于电动汽车的自动换档控制装置

    公开(公告)号:US4174645A

    公开(公告)日:1979-11-20

    申请号:US743657

    申请日:1976-11-22

    摘要: An automatic change-gear control device for use in an electromobile which incorporates a multi-stage change gear drive system. This automatic change gear control device selects and controls a gear ratio for an optimum ratio, depending on the running condition of a vehicle, and particularly provides a change-gear logic by detecting a load torque for every individual condition, in an attempt to improve the running performance of a vehicle at the time of acceleration or at the time of running on an upward slope.

    摘要翻译: 一种用于电动机的自动换档控制装置,其包括多级变速齿轮传动系统。 这种自动变速齿轮控制装置根据车辆的行驶状态来选择和控制最佳比率的齿轮比,并且特别地通过检测每个单独条件的负载转矩提供换档逻辑,以试图改善 在加速时或在向上斜坡上行驶时车辆的行驶性能。

    Electric motor-driven power steering apparatus
    16.
    发明授权
    Electric motor-driven power steering apparatus 失效
    电动助力转向装置

    公开(公告)号:US4869334A

    公开(公告)日:1989-09-26

    申请号:US181048

    申请日:1988-04-13

    CPC分类号: B62D5/0463 B62D5/0484

    摘要: The steering power assist control comprises a main assist control and an auxiliary assist control. When an abnormality occurrence signal from the main assist control is inputted to an abnormality state detection and changing decision circuit 134, the selector circuit changes the PWM signal from the main assist control side to the auxiliary assist control side and outputs the PWM signal to a motor drive circuit. When the main assist control fails, the auxiliary assist control immediately takes over the main assist control to provide, if the operation condition permits, a continued steering power assist control. This prevents an abnormal steering state of the vehicle that would otherwise result when the steering power assist is suddenly lost.

    摘要翻译: 转向助力控制包括主辅助控制和辅助辅助控制。 当来自主辅助控制的异常发生信号被输入到异常状态检测和改变判定电路134时,选择器电路将来自主辅助控制侧的PWM信号改变到辅助辅助控制侧,并将PWM信号输出到电动机 驱动电路。 当主辅助控制失败时,辅助辅助控制立即接管主辅助控制,以在操作条件允许的情况下提供持续的转向助力控制。 这防止了当转向助力突然失去时否则会导致车辆的异常转向状态。